CVE-2026-15291Network attack vector

Unauthenticated lead disclosure via unprotected REST endpoints

Published Jul 10, 2026 · Updated Jul 10, 2026

Missing authorization in ThemeAtelier ChatHelp 3.1.3 and earlier allows remote attackers to read sensitive lead data through REST requests. The /wp-json/chat-help/v1/leads collection and /leads/{id} item handlers return stored form submissions without authenticating the requester or checking authorization. No account or user interaction is required; exposed records include contact details, messages, geolocation and device data, plus account details tied to logged-in submitters.

CVSS severity7.5
High
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in ThemeAtelier ChatHelp 3.1.3 and earlier allows remote attackers to read sensitive lead data through REST requests. The /wp-json/chat-help/v1/leads collection and /leads/{id} item handlers return stored form submissions without authenticating the requester or checking authorization. No account or user interaction is required; exposed records include contact details, messages, geolocation and device data, plus account details tied to logged-in submitters.

The record

CVE
CVE-2026-15291
Published
Jul 10, 2026
Updated
Jul 10, 2026
Vendor
ThemeAtelier
Product
ChatHelp
Classifications
CWE-862, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ThemeAtelier · ChatHelpversion=0 <=3.1.3

Published CVSS scores

7.5WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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